Answer:
9.5%
Step-by-step explanation:
Buying price of the part= $ 8.75
Selling price of the part= $ 9.98
sale tax= $0.40
Selling price before sale tax= $9.98-$ 0.40 = $ 9.58
Make-up amount charged= $9.58- $8.75 = $ 0.83
As a percentage= (0.83/ 8.75) ×100
=9.5%
<span>This question, in my opinion, is not well stated. If f(x) = √x, as the question statement seems to say, then the domain is not x<7. Rather, the domain is x≥0.
If f(x) is not the square root function, but say f(x) = √(7-x) then the domain is x≤7, and for this function then the appropriate answer is d), since the x-term inside the radical has a negative coefficient.</span>
Answer:

Step-by-step explanation:
1. 
2. 
3. b = 
Can't be simplified.
The correct answer is C. They are going down by 3.
It does not matter which he does first. Either way, zero pairs will be created on both sides, which will isolate the variable to determine x<span>. Adding the </span>x<span>-tiles and then the unit tile, or visa versa, will give the same solution.</span>